Patent US2950509A successfully refreshed from Google Patents.
US2950509A
Expired / Lapsed
US
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Awning type window structure
Assignee: TRUTH TOOL CO
•
Filing: 1957-01-22
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Granted: 1960-08-30
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Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Harold L Stavenau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:38
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5009; E06B3/5018
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1927982A
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US2366815A
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US2362730A
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US2720919A
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US2707809A
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US2706839A
Cited
US2782846A
Cited
US2784459A
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US2825939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |